Method of commingling flowing fluids in definite proportions



(No Model.) 3 Sheets-Sheet 1.

L. H. NASH.

METHOD OF GOMMINGLING PLOWING FLUIDS IN DEFINITE PROPORTIONS.

No. 353,704. Patented Dec. 7, 1886.

IJV' VEJV TOR N. PEYERS. Phow-l-flmgraphcr, Washingmn, D. c.

(No Model.) 3 Sheets-Sheet 2.

L. H, NASH.

METHOD OF GOMMING-LING' FLOWING FLUIDS IN DBFINITE PROPORTIONSJ.

Patented Dec. 7, 1886.

WI TJV'ESSES INVEJV'TOR .dttorneya 3 Sheets-Sheet 3.

(No Model.)

4 L. H. NASH. METHOD OF GOMMINGLING PLOWING FLUIDS IN DEFINITBPROPORTIONS.

Patented Dec. '7, 1886.

INVENTOR N PETERS. PhNo-Lilhognphch wnhingnn, D. C.

UNITED STATES LEWIS HALLOOK NAsH, OF BROOKLYN, ASSIGNOR TO THE-NATIONALMETER COMPANY, OF NEW YORK, N. Y.

PATENT OFFICE.

METHOD OF COMMINGLING FLOWING FLUIDS IN DEFINITE PROPORTIONS.

SPECIFICATION forming part of Letters Patent No. 353,704, dated December7, 1886.

Application filed September '23, 1885. Renewed October 7, 1886. St rialNo.2l5.62'2. (No model.)

To aZZ whom it may concern:

Be it known that I, LEWIS HALLOOK NASH, a citizen of the UnitedStates,residing at Brooklyn, in the county of Kings and State of NewYork, have invented new and useful Improvements in Methods ofCommingling Flowing Fluids in Definite Proportions, of which thefollowing is a specification.

The object of my invention is to mix flowing fluids in definiteproportions for use in the arts.

My invention is designed to mixor intermingle different liquids ordifferent gases or liquids with gasessuch, for instance, as gas withairto form a combustible mixture for operating gas-engines; but it iscapable of varied applications in the arts. In its use the device formsthe medium of carrying out my method of receiving, mixing in definiteproportions, and discharging the several constituents in intermingledcondition.

The device, of which I have shown several forms, for carrying out thismethod is a closure of one or more chambers, each having at least oneyielding wall, each having separate inlets, and each communicating withan outlet common to all, each chamber having an inletvalve controlled byits yielding wall.

The accompanying drawings show modified constructions, in which Figure 1represents a vertical section of the device for mixing two fluids, eachflow having a controlling-valve; Fig. 2, an elevation of the same. Fig.3 shows the device as constructed with one flow-controlling valve, andFig. 4. shows the device as constructed for mixing three several anddistinct fluids, each flow having a controllingvalve. Fig. 5 representsa modification of the construction shown in Fig. 4.

The device consists of a closure or case, A, having one or morechambers, each having at least one yielding wall separating the flows,and when more than one chamber is used the device is divided byimmovable partitions into separate chambers, each having a movable wall.

Referring to Figs. 1 and 2, the case is divided by an immovablepartition, a, into two compartments, the heads whereof form the covers BB, which make joints upon the case.

Each compartment is divided into two chambers by partitions, which forma movable wall for each, which I prefer to make of flexible diaphragmsffsecured in the joining of the case-covers. The outer chamber, C, of onecompartment connects with the inner chamber, D, of the other compartmentby a passage, c, placed, preferably, at the circumference, so as toequalize the pressures therein, while the outer chamber, D, of the othercompartment connects with the chamber 0 by the case-ports, d, for thesame purpose. The outer chambers, C D, form the receiving-chambers, andcommunicate by the passages c d with an outlet passage, H, common to allthe chambers. These outlet-passages c d have controllingcocks 0 d forregulating the proportional quantity of the discharge of the separateflows. The movable walls of the chambers are connected with valves H Hby stems i i, for controlling the supply to the chambers, and I preferto usethe double-beat valves shown, placed in the inlet-passages V V",which are formed in the case-covers.

Referring to Fig. 3, the device is shown as having a single compartmentdivided by a movable partition-wall having an inlet controlling valvefor one of the flows only, the flow into the other chamber beinguninterrupted, as shown at V Referring to Fig. 4, the device is shown asconstructed for mixing three constituents, and therefore as having threeseparate compartments, each having its own movable chamber, formingpartition-wall and inlet-controlling valve, and each chamber of eachcompartment communicating with a chamber of one of the othercompartments and the receiving-chainber of each compartmentcommunicating with a discharge common to all the chambers.

It will be understood that the influent-controlling valves and theeffluentcontrolling cocks are the same in the several modificationsshown, and the provision for equalizing the pressure in the severalcommunicating chambers is identical. I have described the movable wallsas being formed of flexible diaphragms; but I may use sliding orswinging joint-forming pistons for controlling'the influent valves.

The operation of the device in commingling flowing fluids in definiteproportions is as follows, viz: The principle of operation being thesame whether two or more fluids are com- 5 mingled, I will describe theoperation of the commingling of three constituents, as illustrated inFig. 4. The flow being in all the chambers by their supply-pipes V V Vif the pressure in any one of the receiving-chambers, as C and D, whichis in communication with it, should become greater than in the otherchambers, the movable wall f will be pressed farther into chamber 0, andthus close to some extent the controlling-valve H, tending to lessen thepressure in 0. At the same time this pressure-in chamber D will move themovable wall f into the chamber D, and thus open the valve H therebyallowing a freer inlet to chamber D, increasing the pressure therein,and in its communicating-chamber E. This increase of pressure in chamberE will move the partition-wally into chamber E opening the valve H, thusgiving a freer inlet into chamber E and increasing the pressure thereinand into its communicating chamber 0, which completes the communicationof all. This operation continues until the pressure in all the chambersis equalized. Should this condition be interrupted by reason of any 0variation in the rate of flow of the separate streams, or in the totaldelivery of the com- I bined streams, then the same equalizing operationwill at once take place, in accordance with the changed condition. Thepressure in all the chambers being the same. the quantity of theconstituent which will flow from each chamber through the passageconnecting it with the discharge cenunon to all will be exactlyproportional to the capacity of its dis- 4o charge-passage. By varyingthe capacity of the several discharge-passages, any desired proportionalrelation between the capacities of these passages can be effected, andthereby the relative proportions of the flowing con 5 stituentsregulated.

In the application of the device forsup'plying a gas-engine the pipe Hisconnected with the supply-pipe of theengine, so that the air is drawnthrough the pipe-chamber and gas through the pipe of'anotherchamber, andare commingled in the delivering-pipe. No particular grouping of thecompartments is essential, so long as they are conveniently arranged.for cooperative action in carrying out the method which I havedescribed.

i the receiving-chambers will be separated from into separate chambers,each having a divid- Instead of the ,receiving chambers being connectedalternately on each side of the dividing-walls, I may dispense with theimmovable partitions shown in Fig. 4, in which case a middle chamber, A,common to all the movable walls, and wherein the pressure would be equalto that of the receiving-chambers.

The device in its organization andv combination is not claimed herein,as it forms the subject of a separate application for a patent filed byme of even date herewith.

In' Figs. 4 and 5 the outlet-passages c d LP, in the chambers O D '13,lead to theoutletpassage H, common to all said chambers, and thesepassages H are provided with regulating-cocks.

I claim- I l. The method, substantially herein described, of.commingling two or more flowing 7 fluids, which consists in conductingeach scparate constituent into a separate chamber, equalizing thepressures in all the chambers by controlling theinflow therein, anddischarging each constituent through a separate passage of determinedcapacity into a conduit common to all the chambers.

2. The method of commingling two or more fluids, which consists inconducting each fluid 8 ing-wall capable of being moved by variations 5in the pressure of the fluid on opposite sides of said wall, controllingthe inflow of each fluid into its chamber by means of the move; ments ofsaid division-walls, and discharging 0' each fluid through passages ofdetermined capacity into a dischargeconduit common to all a thechambers, substantially as described.

3. The method of commingling two or more flowing fluids, which consistsin conducting each fluid into a separate receiving-chamber, equalizingthe pressures in each chamber by means of variations in the relativepressures in the several receiving-chambers, and discharging each fluidunder thesame conditions of pressure through passages of determinedcapacity into a conduit common to all said chambers, substantially asdescribed.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

LEWIS HALLOOK NASH. WVitnesses: p

A. E. H. JoHNsoN. J. W. HAMILTON JoHNsoN.

